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Discussion Starter · #1 ·
Hi guys

I'm not if this is just me been paranoid but we did a long motorway run yesterday in the new q5 and when travelling at roughly between 62 and 74 mph the car seemed to be juddering, it felt like it was misfiring slightly, but engine sounded good and there was no vibration through the steering wheel.
Has anyone else experienced anything similar? I'm not sure if its how a bigger vehicle should feel at faster speeds as we had a TT before.

I'd be grateful for any advice before I speak to dealers and risk making a fool of myself.

cheers

Matt
 

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First thing I would check is that all the wheels are correctly balanced. That is the sort of speed where an imbalance is usually felt.

Oh and I wouldn't use Kwikfit.....I had no end of problems with them recently in that 2 branches couldn't balance my wheels. Had to go elsewhere in the end and what a difference that made to the drive.
 

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First thing I would check is that all the wheels are correctly balanced. That is the sort of speed where an imbalance is usually felt.

Oh and I wouldn't use Kwikfit.....I had no end of problems with them recently in that 2 branches couldn't balance my wheels. Had to go elsewhere in the end and what a difference that made to the drive.
I am sure that in one of the previous posts someone mentioned something similar and about it could be some thing to do with the s-tronic software. Thats if it is s-tronic.
Regards
 

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Hello Matt,

I have the same issue as well, I am just reaching 350 miles on the clock so was not sure if it was the engine just bedding down. I have a 2 ltr TDI manual box. It is a slight judder as you said driving at a constant speed in my case at 120 kmh (cruise control on).

I am back in the UK to visit Audi next week, I have already told them by e-mail so I guess and hope they may do so digging.

Jason
 

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[quote name='matt1232' date='07 June 2010 - 11:11 PM' timestamp='1275948687' post='7260']
Hi guys

travelling at roughly between 62 and 74 mph the car seemed to be juddering, it felt like it was misfiring slightly, but engine sounded good and there was no vibration through the steering wheel.
Has anyone else experienced anything similar? I'm not sure if its how a bigger vehicle should feel at faster speeds as we had a TT before.

Hi Matt,

Just a quick.... "No"... this isn't how a bigger car should feel. It should feel rock solid and smooth.
Hope you figure out what's up without too much hassle.

Cheers,

Mike.
 

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Discussion Starter · #6 ·
Hello Matt,

I have the same issue as well, I am just reaching 350 miles on the clock so was not sure if it was the engine just bedding down. I have a 2 ltr TDI manual box. It is a slight judder as you said driving at a constant speed in my case at 120 kmh (cruise control on).

I am back in the UK to visit Audi next week, I have already told them by e-mail so I guess and hope they may do so digging.

Jason
Hi Jason

Please keep us informed with what Audi say, at least I know it isn't my imagination, likewise we have a 2ltr TDI 170 manual. Its now got 600 miles on it.

cheers

Matt
 

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Will do Matt,

It will be either end of next week or the week after (week 25).

Just to let you know my dealer has said if I am that worried about the judder then I should take the car to the nearest dealer where I am, which is Holland at the moment.

My thoughts were that I have to go to UK next week anyway, and if there is a problem then at least I should get treated better going back to the same dealer who sold me the car.

Jason
 

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Hmm.....given what I found on this link.....

http://www.justanswer.com/questions/355ud-do-experience-vibration-problems-on-my-audi-q5-fitted-with#ixzz0qYUXD9wY

about a problem with Bridgestone tyres I wonder if there is a connection.
LR had a problem with Continentals going bald on the outer shoulders pdq. I think the manufacturers just do a deal with a tyre maker for bulk orders.

To me the description you've described is one of wheel balance and in particular the speed that it appears is a classic balance issue. In the winter I had a build up of ice on my wheels which made it judder once I got to about 65+. Equally when kwikfit couldn't balance my wheels after new tyres were fitted it juddered when it got to 65+.

Does everyone have Bridgestone tyres fitted


Not a tyre make I've ever used or considered buying. Not a make I would choose to replace with either.

So would be worth knowing what tyres people are using please
 

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Can anyone tell me what the speed and load rating is on the 235/55R19 tyres please


Going to look for some alternatives to Bridgestones if that's what I get.

Had a quick look....Michelin Latitude Sport for summer are recommended for the Q5. Price circa ?216 each.

Curiously for winter Audi already specify for the Q5 17" Michelin Latitude Alpin HP.
 

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I have the standard SE wheels and when the car was delivered they had Goodyear excellence tyres on them. Never used Goodyear tyres before but they seem quite good, no judder or road noise etc. The Q5 is by far the smoothest and quietest car i've owned to date
 

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I have 20" Bridgestone Duellers on mine and they don't shake at all, at any speed (although haven't been above 85mph yet)?

Have to say it looks like a wheel balance issue - it is worth checking the balance of the rears, not just they fronts as an out of balance rear can resonate through the car and make it seem like the fronts?
 

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Matt and Jason,

Did you get anywhere with this issue at your Dealers?

Imho I still think this is a balance issue. If it was anything else you would feel it at all speeds.

Now whether that's caused by just that the wheels need rebalancing....As "Nsm3" says......if so insist that all 4 wheels are done as a lot of garages will try and fob you off with just doing the front. Equally the back ones can cause the same problem to be felt through the car.

OR

It's down to the side walls in the Bridgestones not having enough strength to stop the tyre going out of shape whilst parked up. I noticed that Michelin mention tyre wall strength on their web site for SUV tyres. I'm sure all tyres have this problem due to weight but some seem to cope better with it.

Good job the Q5 is not as heavy as the RRS was.
 

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Matt,

I have had my car checked out at Audi, no fault found. I spoke to a couple of the engineers and the conclusion was the fact that with the sports suspension and the Q5 being a solid stiff set up you get this judder feeling when the road surface is a bit bumpy. From my point I dont get it all the time and I do notice it when the road surface has a few lumps and bumps.

I am not convinced this is an issue anymore, just a facture of the Q5 being a solid/rigid car on the road. I have just hit the 1 k mark and its just a pleasure to drive every trip, long or short.

I am sure the tyres or the wheels being out of balance are not the issue here. I hope you resolve and conclude the cause or your judder, I hope this helps or put your mind at ease.

regards

Jason
 

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Discussion Starter · #19 ·
Hi Jason,

Cheers for the update, i've not had chance to contact Audi because the wife drives the car 99% of the time and she says she cant feel anything wrong.
I'm sure if I do contact Audi they'll say bring it in etc etc and fob it off. Who knows, maybe it's me expecting more from a ?35k car.

When I get to drive it next I'll see what its like and take it from there. If and when I do contact Audi, i'll keep you informed.

Cheers,

Matt
 

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IMO there is nothing wrong but just how the suspension and tyres behave on different road surfaces. On the whole My 3.0 tdi S-Line rides very well but occassionally the Q5 is upset by a very uneven road surface. There is also a very strange effect on concrete road surafces (ie the M25) where I do get the 'judder effect' mentioned at the start of this post. I too discussed this with Audi having everything checked including a 4 wheel alignment but all appears as it should be although I will probaly change the Bridgestones for some else when they are worn out to see if this makes a difference.

I have had this incredible car for nearly 10 months now and would find it very hard to complain about the ride. I tend to like a firmer suspension so it essentially works for me!
 
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